Struct
GdkEventButton
Description [src]
struct GdkEventButton {
GdkEventType type;
GdkWindow* window;
gint8 send_event;
guint32 time;
gdouble x;
gdouble y;
gdouble* axes;
GdkModifierType* state;
guint button;
GdkDevice* device;
gdouble x_root;
gdouble y_root;
}
Used for button press and button release events. The
type
field will be one of GDK_BUTTON_PRESS
,
GDK_2BUTTON_PRESS
, GDK_3BUTTON_PRESS
or GDK_BUTTON_RELEASE
,
Double and triple-clicks result in a sequence of events being received. For double-clicks the order of events will be:
GDK_BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_2BUTTON_PRESS
GDK_BUTTON_RELEASE
Note that the first click is received just like a normal
button press, while the second click results in a GDK_2BUTTON_PRESS
being received just after the GDK_BUTTON_PRESS
.
Triple-clicks are very similar to double-clicks, except that
GDK_3BUTTON_PRESS
is inserted after the third click. The order of the
events is:
GDK_BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_2BUTTON_PRESS
GDK_BUTTON_RELEASE
GDK_BUTTON_PRESS
GDK_3BUTTON_PRESS
GDK_BUTTON_RELEASE
For a double click to occur, the second button press must occur within 1/4 of a second of the first. For a triple click to occur, the third button press must also occur within 1/2 second of the first button press.
Structure members
type |
The type of the event ( |
window |
The window which received the event. |
send_event |
|
time |
The time of the event in milliseconds. |
x |
The x coordinate of the pointer relative to the window. |
y |
The y coordinate of the pointer relative to the window. |
axes |
|
state |
A bit-mask representing the state of
the modifier keys (e.g. Control, Shift and Alt) and the pointer
buttons. See |
button |
The button which was pressed or released, numbered from 1 to 5. Normally button 1 is the left mouse button, 2 is the middle button, and 3 is the right button. On 2-button mice, the middle button can often be simulated by pressing both mouse buttons together. |
device |
The master device that the event originated from. Use
|
x_root |
The x coordinate of the pointer relative to the root of the screen. |
y_root |
The y coordinate of the pointer relative to the root of the screen. |